@haeckerfelix I love ESD and other EM weirdness... People underestimate what a wild zoo their homes can be. I have these bluetooth headphones that somehow pick up everything, turning things on and off always gives me some static... and I remember I had an old FM radio that was able to notice all kinds of weird shit too.
@apodoxus
Medium wave radios (aka AM radios) may pick up noise from electric discharges in their environments, especially if tuned to the "static" (sic!) between stations. These might give you a somewhat sensitive detector.
@haeckerfelix